附加组件
![[警告]](https://addons.thunderbird.net/static/img/developers/test-warning.png?b=b00ed3ed-652d8172)
权限
关于这个附加组件
With the rise of widescreen monitors, many users would like the tab bar on the side of the screen instead of the top. Add-ons like TreeStyleTabs are popular for Firefox users, but until now, nothing was available for SeaMonkey. I went back and found that VertTabbar has some SeaMonkey support, so I ported it and restyled it for SeaMonkey. Tested on both Classic and Modern themes,
